It was going so well for Alistair Overeem. Until it wasn't as Jairzinho Rozenstruik scored a final second knockout of Alistair Overeem at UFC Fight Night Washington DC.

Overeem was winning the fight through four rounds, but let his guard down in the final seconds, allowing Rozenstruik to land a big right hand that knocked Overeem out and took a part of his lip as well. Overeem stumbled as he tried to get up, leading to the referee calling off the bout.

Here is how UFC fighters reacted to the big strike.

You can find full results from UFC Fight Night DC by clicking here.

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